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KOSS 191651 KE5 Earbuds (Black) - Walmart.com
Koss Porta Pro Black On Ear Headphones with Case Black
Amazon.com: Koss Porta Pro Wireless Bluetooth On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote, Adjustable Headband with Multi-Pivoting Ear Plates, Black : Electronics
Koss KSC75 Review - The Best Headphones for Beginner Audiophiles (and Gamers) Under $100
Koss Porta Pro Limited Edition Black Gold On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote Control, Includes Hard Carrying Case, Wired with 3.5mm Plug, Black and Gold